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2000 chevy blazer w/ trouble code P0440, stall when hot outside and when you run the air.

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P0440 - Evaporative Emission (EVAP) System .The most common cause for this code is a loose or bad gas cap.The running issue is unlikely caused by this.Is that the only code present?

Posted on Aug 30, 2010

  • Jonathan S
    Jonathan S Aug 30, 2010

    When was the last time that spark plugs were changed?



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P0440 trouble code 98 chevy blazer

This code indicates a leak in the fuel vapor system know as the evap system this can be caused by several things. a faulty purge valve, a vent valve, any one of the fuel vapor lines or even a gas cap that is lose or the seal is bad on gas cap. to isolate the exact problem requires a high end scan tool and a smoke machine to find the problem. on this vehicle the two most common problems are a gas cap, or a bad vent valve

Dec 20, 2011 | 1998 Chevrolet Blazer

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Hi, I have a 2000 Chevy Blazer. It is becoming

You may have misunderstood the part he spoke of are you sure he meant the ECM or did he mean the ignition control module? Bring the car to an Auto Zone and have them check for trouble codes, they check them for free and you can google OBD II trouble code then your year make and model and the code.

Dec 11, 2009 | 2000 Chevrolet Blazer

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Water pump froze and stalled the truck. i replaced the water pump but the truck run really rough at idle 2000 chevy blazer 4wd 4.3l

Usually if a water pump freezes,it will either snap the v-belt or spin off the pulleys.The motor usually has enough power to do this.Maybe there is another problem that has not been spotted yet.How hot did the motor get?Check each sparkplug for signs of water or one that is different looking to the others.This may indicate a problem.If the motor did get hot it may have done a head gasket.Hope this helps

Aug 29, 2009 | 2000 Chevrolet Blazer

1 Answer

2000 Monte Carlo SS- Stalls after running 5-15 minutes

Check the plug on the MAF.Wiggle it while its running......see if it stalls or jerks.
Or.......replace the MAF if the plug/wire connections are good to it.
The other 2 codes will not stall the engine.

Remember.....all cars run on used parts.
A good used MAF can be had a lot cheaper than new.

Aug 26, 2009 | 1999 Chevrolet Monte Carlo

1 Answer

I started my 2000 chevy blazer this a.m. It remained started for 20 minutes. When I put it in reverse it shut off. It cranks but will not turn over. It have sat all day an does the same thing. My service...

P0171 trouble code....Lean condition detected on banks 1 (left side). Most commonly a dirty mass air flow sensor, or possible vacuum leak.

Does vehicle also stall in Drive?

Jan 09, 2009 | 2000 Chevrolet Blazer

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'96 Chevy Blazer Service Engin Soon codes P0440 P0700 P1100

if you are throwing 79 codes it is probably a computer issue.need to clear and see what comes back up. 440 is not a leak but a malfunction check purge solenoid

Dec 17, 2008 | 2000 Chevrolet Blazer

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